hungerford



(No Model.)

G. W. & G. .S. HUNGERFORD.

COFFEE SOOURING MACHINE.

Patented Nov. 22,1881.

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NITED STATES PATENT OEEicE.

GEORGE w. HUNGERFORD AND GEORGE s. HUNGERFORD, on

NEW YORK, N. Y.

COFFEE-SCOURING MACHINE.

SPECIFICATION forming part of Letters Patent No. 249,943, dated November22, 1881 Application filed May 25, 1881.

To all whom it may concern Be it known that we, GEORGE W. HUNGER- FORDand GEORGE S. HUNGERFORD, both citizens of-the United States, residingat New York, in the county and State of New York, have invented new anduseful Improvements in Coffee-scouring Machines, of which the followingis a specification.

Thisinvention relates to machinery for scouring or cleaning eofiee andother similar materials; and it consists in the hereinafterdescribedbearing, swiveled at its lower end on a horizontal pivot, andconstituting a journalbox for one end of the cylinder-shaft, incombination with a sliding bearing connected with an adjusting-screwarranged in supportingguides on the frame of the machine, said slidingbearing constituting also a journal-box for the other end of thecylinder-shaft, all as hereinafter more fully described.

This invention is illustrated in the accompanying drawings, in whichFigure l represents a longitudinal central section. Fig. 2 is an endview of the outer cylinder. Figs. 3 and 4 are detail views of thebearings respectively.

Similar letters indicate corresponding parts.

The letter A designates the, inner cylinder, and B the outer cylinder,provided with spurs 5 on their opposed surfaces, for scouring the coffeeor other material passing between them, the material being fed to theouter cylinder at one end by the hopper 6, and discharging therefromatits opposite end through ports 7 ,formed at that point. A portion ofthe outer cylinder, B, near its delivery end, is made of wirecloth B, orthe like, to allow the escape of the dust or other matter removed fromthe material. The inner cylinder, A, is fixed to a shaft, 0, and theouter cylinder to a shaft, D, both shafts being provided with a pulley,S or 9, for imparting thereto and thence to the cylinders a revolvingmotion. The shaft D of the outer cylinder is tubular and is placedlooselyon the other or inner shaft, 0, and pro- 5 jecting through andbeyond the cylinders at both ends, together with the inner shaft.

The letters F G designate the bearin gs for the shafts O D. The bearingsof themselves constitute journal-boxes in which the ends of (No model.)

the cylinder-shaft revolve, and said boxes and bearings are independentof each other. The bearing F is swiveled by means of a horizontal pivot,10, fixed to asuitable part of the machine-frame, while the bearing G isarranged to slide in guides 11 on the frame, the pivot being horizontal,while the guides are vertical. The sliding box or bearing G, moreover,is fitted loosely in the guides 11, so that it has sufficient playtherein to admit of its vertical movement.

To the sliding bearing G is connected the lower end of a screw, H, whichextends through a cross-piece of the machine-frame, and is provided witha nut, 12, on its upper threaded part, for its adjustment. By adjustingthe screw H in an appropriate manner the sliding bearing G can be movedup or down, carrying with itthe adjacent delivery end of the cylindersthrough the shaft G, the body of-the cylinders swinging on the pivot orswivel joint 10 during such motion. When the sliding bearing G is movedin a lower direction the cylinders are broughtto an inclined plane fromthe receiving end to the delivery end, the effect of which is to causethe material to travel toward the lower or delivery end by gravity; andinasmuch as the degree of such inclination can be varied, the passage ofthe material can be hastened or retarded, subjecting it to the action ofthe cylinders for a shorter or longer period of time.

Heretofore the cylinders of a coffeemill have been arranged withinarectangularframe which is pivoted at one end and suspended at the otherend within abraeket which has a threaded vertical shank passing throughan adjustingscrew; but such structure does not constitute our invention.The casing of a grinding-mill has also been pivoted at one end to asupporting-base and at its other end to a screw-support for adjustingthe elevation of the end of the casing; but neither does such structureconstitute our invention.

What we claim as new, and desire to secure by Letters Patent, is-- In amachine for scouring cofi'ee, the bearing F, swiveled at its lower endon a horizontal pivot, 10, and constituting a journal-box for one end ofthe cylinder-shaft, in combinaour hands and seals in the presence of twotion with the sliding bearing Gr, connected subscribing witnesses.

with an adjusting-screw arranged in supporting-guides 11 on the frame ofthe machine, said GEORGE HUNGERFORD' F" J sliding bearing constitutingalso a journal-box HUNGERFORD' for the other end of the cylinder-shaft,all sub- \Vitncsses: stantially as shown and described. LEVY COHEN,

In testimony whereof we have hereunto set MICHAEL E. CARLEY.

